Gimbal

CROSS-REFERENCE TO RELATED APPLICATION

0001This application is a continuation application of International Application No. PCT/CN2014/084273, filed with the State Intellectual Property Office of P. R. China on Aug. 13, 2014, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

0002The present disclosure relates to image shooting devices and, particularly, to a gimbal.

BACKGROUND OF THE DISCLOSURE

0003A gimbal may be a support for mounting a video camera which is to be disposed on the gimbal. A lens of the video camera may be adjusted to properly videotaping a target by adjusting the gimbal. A gimbal may be compatible with various types of video cameras or lenses, and the center of gravity of each axis of the gimbal may be adjustable. However, in existing mechanisms, the center of gravity may be adjusted by a relative displacement of various structures of the gimbal. Since most of the structures bear loads, an increased static friction between the structural members may lead to a difficult relative movement therebetween. Moreover, a small relative displacement may lead to a significant change in the center of gravity, making it difficult to adjust the center of gravity.

SUMMARY OF THE DISCLOSURE

0004An object of the present disclosure is to provide a gimbal that may be quickly adjusted to balance the center of gravity thereof.

0005In accordance with the present disclosure, there is provided a gimbal for carrying an imaging device, comprising a first support frame, a second support frame pivotably connected with the first support frame, a third support frame pivotably connected with the second support frame, a support assembly, and a center of gravity adjusting unit. The first support frame comprises two first-frame pillars, two clamping devices arranged on the two first-frame pillars, respectively, and a guiding post connected between the two first-frame pillars through the two clamping devices, respectively. The guiding post is configured to move along a longitudinal direction of the first-frame pillars. The third support frame comprises a third-frame pillar connected with the second support frame and a connecting plate movably arranged on the third-frame pillar. The support assembly comprises an adaptor slidably arranged on the guiding post. The center of gravity adjusting unit is arranged on one of the first-frame pillars and configured to adjust a position of the guiding post on the first-frame pillars, or arranged between the two clamping devices and configured to adjust a position of the adaptor on the guiding post, or arranged in the connecting plate and configured to adjust a position of the third-frame pillar on the connecting plate.

0006In some embodiments, the center of gravity adjusting unit is arranged on the one of the first-frame pillars and configured to adjust the position of the guiding post on the first-frame pillars.

0007In some embodiments, the center of gravity adjusting unit comprises two snap rings sleeved at two ends of the one of the first-frame pillars, respectively, and a threaded rod. One of the clamping devices is located between the two snap rings and comprises a collar having a threaded hole. The threaded rod is sleeved in the snap rings and threadedly connected with the threaded hole.

0008In some embodiments, the center of gravity adjusting unit further comprises two bearings. Each of the two snap rings includes a bearing hole configured to receive one of the bearings. Two ends of the threaded rod are received in the two bearings, respectively.

0009In some embodiments, one end of the first threaded rod is provided with a rotating handle or a driving motor configured to drive the threaded rod to rotate.

0010In some embodiments, the collar comprises a pillar clamping hole and a guiding post receiving portion. The pillar clamping hole has an axial direction approximately parallel to an axial direction of the threaded hole and is configured to receive the one of the first-frame pillars. A shape and a size of the pillar clamping hole correspond to a shape and a size of the one of the first-frame pillars, respectively. The guiding post receiving portion has an axial direction approximately perpendicular to an axial direction of the pillar clamping hole and is configured to receive one end of the guiding post.

0011In some embodiments, each of the clamping devices comprises a clamp locking member configured to release or lock the guiding post to allow an adjustment of a position of the guiding post on the corresponding first-frame pillar.

0012In some embodiments, the center of gravity adjusting unit is arranged between the two clamping devices and configured to adjust the position of the adaptor on the guiding post.

0013In some embodiments, the adaptor is a first adaptor. The support assembly further comprises a second adaptor slidably arranged on the guiding post. The center of gravity adjusting unit comprises a threaded rod and a rotating member. Two ends of the threaded rod are fixed on the two clamping devices, respectively. The rotating member is rotatably movably arranged on and threadedly connected with the threaded rod. The rotating member is arranged between the first adaptor and the second adaptor.

0014In some embodiments, each of the clamping devices comprises a collar having a rod fixing hole provided at a middle position of the collar. Two ends of the threaded rod are fixed in the two rod fixing holes, respectively.

0015In some embodiments, the rotating member abuts against an inner sidewall of the first adaptor and an inner sidewall of the second adaptor. The rotating member includes a threaded hole at a central portion of the rotating member and being threadedly connected with the threaded rod.

0016In some embodiments, the center of gravity adjusting unit is arranged in the connecting plate and configured to adjust the position of the third-frame pillar on the connecting plate.

0017In some embodiments, the connecting plate comprises a bottom surface having a receiving groove. The center of gravity adjusting unit comprises a threaded rod sleeved on two sidewalls of the receiving groove and a moving member rotatably movably arranged on the threaded rod. The moving member comprises a first moving portion fixedly connected with the second support frame, and a second moving portion connected with the first moving portion and including a threaded hole inserted in the threaded hole and threadedly connected with the threaded hole.

0018In some embodiments, the receiving groove comprises an outer sidewall. The center of gravity adjusting unit comprises two bearings. One of the two bearings is fixed in the receiving groove, and another one of the bearings is fixed to the outer sidewall. One end of the threaded rod is sleeved in the one of the two bearings fixed in the receiving groove.

0019In some embodiments, a rotating handle or a driving motor is provided at one end of the threaded rod and configured to drive the threaded rod to rotate.

0020In some embodiments, the support assembly further comprises a mounting plate fixed to the adaptor, a supporting plate slidably arranged on the mounting plate, and a press-locking device arrange at one side of the mounting plate and configured to fix the supporting plate on the mounting plate.

0021In some embodiments, the adaptor comprises a first pressing block and a second pressing block disposed opposite to each other and jointly locked by a screw. A circular slot is formed between the first pressing block and the second pressing block. The guiding post is inserted in the circular slot. The adaptor is fixed on the guiding post when the screw is tightened and is capable of sliding on the guiding post along a longitudinal direction of the guiding post when the screw is released. A nut of the screw is fixed to a lever.

0022In some embodiments, the second support frame comprises a driving device, two second-frame pillars, and a connecting pillar connecting the two second-frame pillars. One of the second-frame pillars is pivotably connected with a rotating shaft of one of the first-frame pillars and another one of the second-frame pillars being pivotably connected with a rotating shaft of the other one of the first-frame pillars through the driving device. The two second-frame pillars and the connecting pillar jointly form a U-shaped structure.

0023In some embodiments, the driving device is a first driving device. The third support frame further comprises a second driving device rotatably connected to the connecting pillar to drive the second support frame to rotate. The second driving device is fixed to one end of the third-frame pillar, and another end of the third-frame pillar is connected to the connecting plate.

0024In some embodiments, the gimbal of claim further comprises a driving portion configured to drive the third support frame to rotate and a handle portion. The driving portion includes a brushless motor having a rotor connected to the connecting plate and a stator fixed to the handle portion.

0025Embodiments of the present disclosure may also be implemented by a gimbal for carrying an imaging device. The gimbal may comprise a first support frame, a second support frame pivotably connected with the first support frame, a third support frame pivotably connected with the second support frame, and a support assembly; the first support frame may comprise two first-frame pillars, two guiding posts and two clamping devices, the guiding posts being perpendicular to the two first-frame pillars, the two guiding posts being movable along a longitudinal direction of the first-frame pillars through the clamping devices; the two guiding posts support the imaging device; the support assembly may comprise two adaptors slidably arranged on the guiding posts; the third support frame may comprise a pillar connected with the second support frame and a connecting plate movably arranged on the pillar; wherein the gimbal may further comprises at least one center of gravity adjusting unit, the at least one center of gravity adjusting unit is at least arranged on the first-frame pillar, between the two clamping devices or in the connecting plate, and the at least one center of gravity adjusting unit is configured to at least adjust a position of the guiding posts on the first-frame pillar, or a position of the adaptors on the guiding posts, or a position of the pillar on the connecting plate.

0026In some embodiments, the at least one center of gravity adjusting unit may comprise a first center of gravity adjusting unit arranged on the first-frame pillar for adjusting the position of the guiding posts on the first-frame pillar.

0027In some embodiments, the at least one center of gravity adjusting unit may comprise a second center of gravity adjusting unit arranged between the two clamping devices for adjusting the position of the adaptors on the guiding posts.

0028In some embodiments, the at least one center of gravity adjusting unit may comprise a third center of gravity adjusting unit arranged in the connecting plate for adjusting the position of the pillar on the connecting plate.

0029In some embodiments, the at least one center of gravity adjusting unit may comprise a first center of gravity adjusting unit and a second center of gravity adjusting unit, the first center of gravity adjusting unit may be arranged on the first-frame pillar for adjusting the position of the guiding posts on the first-frame pillar, and the second center of gravity adjusting unit may be arranged between the two clamping devices for adjusting the position of the adaptors on the guiding posts.

0030In some embodiments, the at least one center of gravity adjusting unit may comprise a first center of gravity adjusting unit and a third center of gravity adjusting unit, the first center of gravity adjusting unit may be arranged on the first-frame pillar for adjusting the position of the guiding posts on the first-frame pillar, and the third center of gravity adjusting unit may be arranged in the connecting plate for adjusting the position of the pillar on the connecting plate.

0031In some embodiments, the at least one center of gravity adjusting unit may comprise a second center of gravity adjusting unit and a third center of gravity adjusting unit, the second center of gravity adjusting unit may be arranged between the two clamping devices for adjusting the position of the adaptors on the guiding posts, and the third center of gravity adjusting unit may be arranged in the connecting plate for adjusting the position of the pillar on the connecting plate.

0032In some embodiments, the at least one center of gravity adjusting unit may comprise a first center of gravity adjusting unit, a second center of gravity adjusting unit and a third center of gravity adjusting unit, the first center of gravity adjusting unit may be arranged on the first-frame pillar for adjusting the position of the guiding posts on the first-frame pillar, the second center of gravity adjusting unit may be arranged between the two clamping devices for adjusting the position of the adaptors on the guiding posts, and the third center of gravity adjusting unit may be arranged in the connecting plate for adjusting the position of the pillar on the connecting plate.

0033In some embodiments, the first center of gravity adjusting unit may comprise two snap rings and a first threaded rod; the two snap rings may be respectively sleeved at two ends of one of the first-frame pillars; one of the clamping devices may be located between the two snap rings; each of the two clamping devices may comprise a collar; one of the collars may be provided with a first threaded hole; and the first threaded rod may be sleeved in the snap rings and threadedly connected with the first threaded hole.

0034In some embodiments, the first center of gravity adjusting unit may further comprise two first bearings; the two snap rings may be respectively provided with a bearing hole; the two bearing holes may be configured to respectively receive one of the first bearings; and two ends of the first threaded rod may be respectively received in the two first bearings.

0035In some embodiments, one end of the first threaded rod may be provided with a first rotating handle.

0036In some embodiments, one end of the first threaded rod may be provided with a driving motor for driving a rotation of the first threaded rod.

0037In some embodiments, the collar may be provided with a pillar clamping hole, and two guiding post receiving portions respectively arranged at two sides of the pillar clamping hole; an axial direction of the pillar clamping hole may be substantially perpendicular to an axial direction of the guiding post receiving portions; a shape and a size of the pillar clamping hole may respectively correspond to a shape and a size of the first-frame pillar; the two first-frame pillars may be respectively sleeved in one of the pillar clamping holes; each of the guiding post receiving portions may be respectively configured to receive one end of the guiding post so that the two guiding posts may be arranged substantially in parallel; and an axial direction of the first threaded hole may be substantially perpendicular to an axial direction of the guiding post receiving portions.

0038In some embodiments, the clamping device may further comprise a clamp locking member for adjusting a mounting position of the two guiding posts on the first-frame pillar by releasing or tightening the clamp locking member.

0039In some embodiments, the support assembly may further comprise a mounting plate, a supporting plate slidably arranged on the mounting plate, and a press-locking device; the mounting plate may be fixed to the adaptors; the supporting plate may be slidably arranged on the mounting plate; and the press-locking device may be arranged at one side of the mounting plate for fixing the supporting plate on the mounting plate.

0040In some embodiments, the second center of gravity adjusting unit may comprise a second threaded rod and a rotating member rotatably movably arranged on the second threaded rod; both ends of the second threaded rod may be respectively fixed on the two clamping devices; and the rotating member may be arranged between the two adaptors and threadedly connected with the second threaded rod.

0041In some embodiments, a rod fixing hole may be provided at a middle position of each of the two collars, and two ends of the second threaded rod may be respectively fixed in the two rod fixing holes.

0042In some embodiments, the rotating member may abut against an inner sidewall of the two adaptors; a threaded hole may be provided at a central portion of the rotating member; and the threaded hole of the rotating member may be threadedly connected with the second threaded rod.

0043In some embodiments, each of the adaptors may comprise a first pressing block and a second pressing block disposed opposite to each other; two circular slots may be formed between the first pressing block and the second pressing block; the guiding posts may be respectively inserted in the circular slots; the first pressing block and the second pressing block may be jointly locked by a screw; and the adaptor may be fixed on the guiding posts when the screw is tightened, and may be capable of sliding on the guiding posts along a longitudinal direction of the guiding posts when the screw is released.

0044In some embodiments, a nut of the screw may be fixed to a lever.

0045In some embodiments, the second support frame may comprise two second-frame pillars, a first driving device and a connecting pillar connecting the two second-frame pillars; the two second-frame pillars and the connecting pillar may jointly form a U-shaped structure, one of the second-frame pillars may be pivotably connected with a rotating shaft of one of the first-frame pillars, and the other one of the second-frame pillars may be pivotably connected with a rotating shaft of the other one of the first-frame pillars through the first driving device.

0046In some embodiments, the third support frame may further comprise a second driving device rotatably connected to the second-frame pillars to drive the second support frame, the second driving device may be fixed to one end of the pillar; the second driving device may be rotatably connected to the connecting pillar to drive a rotation of the second support frame; and the other end of the pillar may be connected to the connecting plate.

0047In some embodiments, the gimbal may further comprise a driving portion and a handle portion; the driving portion may be a brushless motor having a rotor connected to the connecting plate and a stator fixed to the handle portion; and the driving portion may be configured to drive a rotation of the third support frame.

0048In some embodiments, the third center of gravity adjusting unit may comprise a third threaded rod and a moving member rotatably movably arranged on the third threaded rod; the connecting plate may comprise a bottom surface; the bottom surface may be provided with a receiving groove; the third threaded rod may be sleeved on two sidewalls of the receiving groove; the moving member may comprise a first moving portion and a second moving portion connected with the first moving portion; the first moving portion may be fixedly connected with the second support frame; the second moving portion may be provided with a second threaded hole; and the third threaded rod may pass through the second threaded hole and may be threadedly connected with the second threaded hole.

0049In some embodiments, the third center of gravity adjusting unit may comprise two second bearings; the receiving groove may comprise a outer sidewall; one of the two second bearings may be fixed in the receiving groove, and the other one of the second bearings may be fixed to the outer sidewall; one end of the third threaded rod may be sleeved in one of the second bearings that is received in the receiving groove.

0050In some embodiments, a second rotating handle may be provided at one end of the third threaded rod.

0051In some embodiments, a driving motor may be provided at one end of the third threaded rod for driving a rotation of the third threaded rod.

0052Embodiments of the present disclosure may be implemented by a gimbal for carrying an imaging device. The gimbal may comprise a first support frame; the first support frame may comprise two first-frame pillars, two guiding posts and two clamping devices; the guiding posts may be arranged substantially perpendicular to the two first-frame pillars; the two guiding posts may be movable along a longitudinal direction of the first-frame pillars through the clamping devices; the two guiding posts may be configured to carry the imaging device; the gimbal may further comprise a center of gravity adjusting unit arranged on the first-frame pillar for at least adjusting a position of the guiding posts on the first-frame pillar.

0053In some embodiments, the center of gravity adjusting unit may comprise two snap rings and a first threaded rod; the two snap rings may be respectively sleeved at both ends of one of the first-frame pillars; one of the clamping devices may be located between the two snap rings; each of the two clamping devices may comprise a collar; one of the collars may be provided with a first threaded hole; and the first threaded rod may be sleeved in the snap rings and threadedly connected with the first threaded hole.

0054In some embodiments, the center of gravity adjusting unit may further comprise two first bearings; the two snap rings may be respectively provided with a bearing hole; the two bearing holes may be configured to respectively receive one of the first bearings; and two ends of the first threaded rod may be respectively received in the two first bearings.

0055In some embodiments, one end of the first threaded rod may be provided with a first rotating handle.

0056In some embodiments, one end of the first threaded rod may be provided with a driving motor for driving a rotation of the first threaded rod.

0057In some embodiments, the collar may be provided with a pillar clamping hole, and two guiding post receiving portions respectively arranged at two sides of the pillar clamping hole; an axial direction of the pillar clamping hole may be substantially perpendicular to an axial direction of the guiding post receiving portions; a shape and a size of the pillar clamping hole may respectively correspond to a shape and a size of the first-frame pillar; the two first-frame pillars may be respectively sleeved in one of the pillar clamping holes; each of the guiding post receiving portions may be respectively configured to receive one end of the guiding post so that the two guiding posts may be arranged substantially in parallel; and an axial direction of the first threaded hole may be substantially perpendicular to an axial direction of the guiding post receiving portions.

0058In some embodiments, the clamping device may further comprise a clamp locking member for adjusting a mounting position of the two guiding posts on the first-frame pillar by releasing or tightening the clamp locking member.

0059In some embodiments, the gimbal may further comprise a support assembly; the support assembly may further comprise a mounting plate, a supporting plate slidably arranged on the mounting plate, and a pressing device; the mounting plate may be fixed to the adaptors; the supporting plate may be slidably arranged on the mounting plate; and the press-locking device may be arranged at one side of the mounting plate for fixing the supporting plate on the mounting plate.

0060In some embodiments, each of the adaptors may comprise a first pressing block and a second pressing block disposed opposite to each other; two circular slots may be formed between the first pressing block and the second pressing block; the guiding posts may be respectively inserted in the circular slots; the first pressing block and the second pressing block may be jointly locked by a screw; and the adaptor may be fixed on the guiding posts when the screw is tightened, and the adaptor may be capable of sliding on the guiding posts along a longitudinal direction of the guiding posts when the screw is released.

0061In some embodiments, a nut of the screw may be fixed to a lever.

0062Embodiments of the present disclosure may be implemented by a gimbal for carrying an imaging device. The gimbal may comprise a first support frame and a support assembly; the first support frame may comprise two first-frame pillars, two guiding posts and two clamping devices; the guiding posts may be arranged perpendicular to the two first-frame pillars; the two guiding posts may be movable along a longitudinal direction of the first-frame pillars through the clamping devices; the two guiding posts may be configured to carry the imaging device; the support assembly comprises two adaptors slidably arranged on the guiding posts; and the gimbal may further comprise a center of gravity adjusting unit arranged between the two clamping devices for adjusting a position of the adaptors on the guiding posts.

0063In some embodiments, the support assembly may further comprise a mounting plate, a supporting plate slidably arranged on the mounting plate, and a pressing device; the mounting plate may be fixed to the adaptors; the supporting plate may be slidably arranged on the mounting plate; and the press-locking device may be arranged at one side of the mounting plate for fixing the supporting plate on the mounting plate.

0064In some embodiments, the center of gravity adjusting unit may comprise a threaded rod and a rotating member rotatably movably arranged on the threaded rod; two ends of the threaded rod may be respectively fixed on the two clamping devices; and the rotating member may be arranged between the two adaptors and threadedly connected with the threaded rod.

0065In some embodiments, a rod fixing hole may be provided at a middle position of each of the two collars, and two ends of the threaded rod may be respectively fixed in the two rod fixing holes.

0066In some embodiments, the rotating member may abut against an inner sidewall of the two adaptors; a threaded hole may be provided at a central portion of the rotating member; and the threaded hole of the rotating member may be threadedly connected with the threaded rod.

0067In some embodiments, each of the adaptors may comprise a first pressing block and a second pressing block disposed opposite to each other; two circular slots may be formed between the first pressing block and the second pressing block; the guiding posts may be respectively inserted in the circular slots; the first pressing block and the second pressing block may be jointly locked by a screw; and the adaptor may be fixed on the guiding posts when the screw is tightened, and may be capable of sliding on the guiding posts along a longitudinal direction of the guiding posts when the screw is released.

0068In some embodiments, a nut of the screw may be fixed to a lever.

0069Embodiments of the present disclosure may be implemented by a gimbal for carrying an imaging device. The gimbal may comprise a first support frame, a second support frame pivotably connected with the first support frame, and a third support frame pivotably connected with the second support frame; the third support frame may comprise a pillar connected with the second support frame and a connecting plate movably arranged on the pillar; and the gimbal may further comprise a center of gravity adjusting unit arranged in the connecting plate for adjusting a position of the pillar on the connecting plate.

0070In some embodiments, the center of gravity adjusting unit may comprise a threaded rod and a moving member rotatably movably arranged on the threaded rod; the connecting plate may comprise a bottom surface; the bottom surface may be provided with a receiving groove; the threaded rod may be sleeved on two sidewalls of the receiving groove; the moving member may comprise a first moving portion and a second moving portion connected with the first moving portion; the first moving portion may be fixedly connected with the second support frame; the second moving portion may be provided with a threaded hole; and the threaded rod may pass through the threaded hole and may be threadedly connected with the threaded hole.

0071In some embodiments, the center of gravity adjusting unit may comprise two bearings; the receiving groove may comprise a outer sidewall; one of the two bearings may be fixed in the receiving groove, and the other one of the bearings may be fixed to the outer sidewall; one end of the threaded rod is sleeved in the one of the bearings which is received in the receiving groove.

0072In some embodiments, a second rotating handle may be provided at one end of the threaded rod.

0073In some embodiments, a driving motor may be provided at one end of the threaded rod for driving a rotation of the threaded rod.

0074As compared with the conventional technologies, the gimbal of the present disclosure may further comprise at least one center of gravity adjusting unit. The at least one center of gravity adjusting unit may be arranged at least on the first-frame pillar, between the two clamping devices or in the connecting plate, and may be configured to adjust at least a position of the guiding posts on the first-frame pillar, a position of the adaptors on the guiding posts, or a position of the pillar on the connecting plate. The center of gravity of the gimbal can be adjusted by the at least one center of gravity adjusting unit.

BRIEF DESCRIPTION OF THE DRAWINGS

0075<figref idref="DRAWINGS">FIG. 1</figref> is a perspective view of a gimbal according to the present disclosure.

0076<figref idref="DRAWINGS">FIG. 2</figref> is a perspective view showing a first support frame, a support assembly and a center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 1</figref>.

0077<figref idref="DRAWINGS">FIG. 3</figref> is a perspective view showing a first-frame pillar and a first center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 2</figref>.

0078<figref idref="DRAWINGS">FIG. 4</figref> is a perspective view showing a first-frame pillar and a first center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 3</figref> from another angle of view.

0079<figref idref="DRAWINGS">FIG. 5</figref> is a perspective view showing the first support frame, the support assembly and the center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 2</figref> from another angle of view.

0080<figref idref="DRAWINGS">FIG. 6</figref> is a perspective view showing a third support frame and a third center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 1</figref>.

0081<figref idref="DRAWINGS">FIG. 7</figref> is a perspective view showing the third support frame and the third center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 6</figref>.

0082<figref idref="DRAWINGS">FIG. 8</figref> is a perspective view showing the third support frame and the third center of gravity adjusting unit in <figref idref="DRAWINGS">FIG. 7</figref> from another angle of view.

0083<figref idref="DRAWINGS">FIG. 9</figref> is a view showing a working condition of the gimbal in <figref idref="DRAWINGS">FIG. 1</figref>.

DETAILED DESCRIPTION OF THE EMBODIMENTS

0084The technical solution of the present disclosure will be described in detail below with reference to the embodiments of the disclosure in combination with the drawings. It should be appreciated that embodiments described herein are only some rather than all of the embodiments of the present disclosure. All other embodiments obtained by those having ordinary skills in the art on the basis of the embodiments of the present disclosure without any inventive efforts should fall within the scope of the present disclosure.

0085Implementation of the present disclosure will be described in detail below, with reference to exemplary embodiments.

0086Referring to <figref idref="DRAWINGS">FIGS. 1 and 2</figref>, the present disclosure may provide a gimbal <b>100</b> for carrying an imaging device <b>200</b> (as shown in <figref idref="DRAWINGS">FIG. 9</figref>). The imaging device <b>200</b> may be a camera, a camcorder, or a lens.

0087The gimbal <b>100</b> may comprise a first support frame <b>10</b>, a support assembly <b>20</b> movably arranged on the first support frame <b>10</b>, a second support frame <b>40</b> that may be hinged with the first support frame <b>10</b> and configured to drive the first support frame <b>10</b> to rotate, a third support frame <b>40</b><i>a </i>that may be hinged with the second support frame <b>40</b> and configured to drive the second support frame <b>40</b> to rotate, a driving portion <b>40</b><i>b </i>configured to drive the third support frame <b>40</b><i>a </i>to rotate, a handle portion <b>60</b>, and three center of gravity adjusting units.

0088The first support frame <b>10</b> may comprise two first-frame pillars <b>11</b>, two guiding posts <b>12</b>, and two clamping devices <b>13</b>. The two guiding posts <b>12</b> may be arranged perpendicular to the two first-frame pillars <b>11</b>. The two guiding posts <b>12</b> may be movable along a longitudinal direction of the first-frame pillars <b>11</b> through the clamping devices <b>13</b>, and may be fixed at any position on the first-frame pillars <b>11</b> through the clamping devices <b>13</b>.

0089In some embodiments, the first-frame pillars <b>11</b> may be cylindrical in shape. Each one of the first-frame pillars <b>11</b> may comprise a connecting end <b>110</b>. The connecting end <b>110</b> may be provided with a through-hole <b>111</b>. In some embodiments, an axial direction of the through-hole <b>111</b> may be approximately perpendicular to the longitudinal direction of the first-frame pillar <b>11</b>. A rotating shaft <b>112</b> may be provided in the through-hole <b>111</b>. In some embodiments, the first-frame pillars <b>11</b> may be configured in other shapes.

0090In some embodiments, the two guiding posts <b>12</b> may be cylindrical. In some embodiments, the guiding posts <b>12</b> may be configured in other shapes.

0091Each of the two clamping devices <b>13</b> may comprise a collar <b>13</b><i>a </i>and a clamp locking member <b>134</b>. The collar <b>13</b><i>a </i>may be provided with a pillar clamping hole <b>130</b>, two guiding post receiving portions <b>132</b> arranged at two sides of the pillar clamping hole <b>130</b>, respectively, and a first threaded hole <b>136</b> (shown in <figref idref="DRAWINGS">FIG. 4</figref>). An axial direction of the pillar clamping hole <b>130</b> may be approximately perpendicular to an axial direction of the guiding post receiving portions <b>132</b>. A shape and a size of the pillar clamping hole <b>130</b> may correspond to a shape and a size of the first-frame pillar <b>11</b>, respectively. The two first-frame pillars <b>11</b> may be sleeved in the pillar clamping holes <b>130</b>, respectively. Each one of the guiding post receiving portions <b>132</b> may receive an end of one of the guiding posts <b>12</b>, such that the two guiding posts <b>12</b> may be arranged approximately in parallel. An axial direction of the first threaded hole <b>136</b> may be approximately perpendicular to the axial direction of the guiding post receiving portions <b>132</b>.

0092The clamp locking member <b>134</b> may be configured to lock the clamping device <b>13</b> at an arbitrary position on the first-frame pillar <b>11</b>. In some embodiments, the clamp locking member <b>134</b> may be a lock catch made of a metallic material. The clamp locking member <b>134</b> may be configured to apply a pressure on the collar <b>13</b><i>a </i>such that a diameter of the pillar clamping hole <b>130</b> of the collar <b>13</b><i>a </i>is reduced to clamp the first-frame pillar <b>11</b>. In some embodiments, positions of the two guiding posts <b>12</b> on the first-frame pillars <b>11</b> may be adjusted by releasing or tightening the clamp locking member <b>134</b>.

0093The support assembly <b>20</b> may comprise two adaptors <b>23</b> slidably arranged on the guiding posts <b>12</b>, a mounting plate <b>24</b>, a supporting plat <b>25</b> slidably provided on the mounting plate <b>24</b>, and a press-locking device <b>26</b>. The mounting plate <b>24</b> may be fixed to the adaptors <b>23</b>. In some embodiments, the mounting plate <b>24</b> may be fixed on the adaptors <b>23</b> by bolt(s). The supporting plate <b>25</b> may be slidably provided on the mounting plate <b>24</b>. The press-locking device <b>26</b> may be arranged at one side of the mounting plate <b>24</b>, and may be configured to fix the supporting plate <b>25</b> at an arbitrary position on the mounting plate <b>24</b>.

0094In order to adjust a sliding of the adaptors <b>23</b>, each of the adaptors <b>23</b> may comprise a first pressing block <b>231</b> and a second pressing block <b>232</b> which are disposed opposite to each other. Two circular slots <b>230</b> may be formed between the first pressing block <b>231</b> and the second pressing block <b>232</b>, and the guiding posts <b>12</b> may be inserted in the circular slots <b>230</b>, respectively. The first pressing block <b>231</b> and the second pressing block <b>232</b> may be jointly locked by a screw <b>233</b>. The adaptor <b>23</b> may be fixed on the guiding posts <b>12</b> when the screw <b>233</b> is tightened. On the other hand, the adaptor <b>23</b> may be capable of sliding on the guiding posts <b>12</b> along a longitudinal direction the guiding posts <b>12</b> when the screw <b>233</b> is released.

0095In some embodiments, a nut of each of the screws <b>233</b> may be fixed to a lever <b>234</b> extending in a direction perpendicular to a longitudinal direction of the screw <b>233</b>. The lever <b>234</b> may be rotated in a tightening direction of the screw <b>233</b> to tighten the screw <b>233</b>. On the other hand, the lever <b>234</b> may be rotated in a direction opposite to the tightening direction of the screw <b>233</b> to loosen the screw <b>233</b>, such that the adaptor <b>23</b> may slide along the guiding posts <b>12</b>.

0096The mounting plate <b>24</b> may be fixed on the second pressing blocks <b>232</b>. The mounting plate <b>24</b> may be provided with a first sliding slot <b>2430</b>.

0097A plurality of screw holes <b>25</b><i>a </i>may be evenly provided on the supporting plate <b>25</b> along a length direction of the supporting plate <b>25</b>. The screw holes <b>25</b><i>a </i>may be used to connect with the imaging device <b>200</b> by screws. The plurality of screw holes <b>25</b><i>a </i>may be used to install various types of imaging device <b>200</b> having different specifications and adjust a position of the imaging device <b>200</b> on the supporting plate <b>25</b>. In some embodiments, a second sliding slot <b>250</b> matching the first sliding slot <b>2430</b> may be provided on each of two outer sidewalls <b>25</b><i>b </i>of the supporting plate <b>25</b> at a position corresponding to the first sliding slot <b>2430</b>. In some embodiments, the second sliding slot <b>250</b> may be a dovetail sliding slot.

0098The press-locking device <b>26</b> may be configured to release a locking between the supporting plate <b>25</b> and the mounting plate <b>24</b>, thereby allowing the supporting plate <b>25</b> to slide or to be fixed on the mounting plate <b>24</b>.

0099The second support frame <b>40</b> may comprise two second-frame pillars <b>41</b>, a first driving device <b>42</b>, and a connecting pillar <b>41</b><i>a </i>connecting the two second-frame pillars <b>41</b>. The two second-frame pillars <b>41</b> and the connecting pillar <b>41</b><i>a </i>may jointly form a U-shaped structure. The two second-frame pillars <b>41</b> may be arranged approximately in parallel. One of the second-frame pillars <b>41</b> may be directly pivotably connected with the rotating shaft <b>112</b> of one of the first-frame pillars <b>11</b>, while the other one of the second-frame pillars <b>41</b> may be pivotably connected with the through hole <b>111</b> of the other one of the first-frame pillars <b>11</b> through the first driving device <b>42</b>. In some embodiments, the first driving device <b>42</b> may be fixed to one end of the second-frame pillar <b>41</b> adjacent to the first-frame pillar <b>11</b>, and a driving shaft <b>420</b> of the first driving device <b>42</b> may be fixedly connected with the through hole <b>111</b> of one of the first-frame pillars <b>11</b> to drive the first-frame pillar <b>11</b> to rotate, so as to drive the first support frame <b>10</b> to rotate. In some embodiments, an axial direction of the driving shaft <b>420</b> of the first driving device <b>42</b> may be substantially perpendicular to a longitudinal direction of the second-frame pillar <b>41</b>. The first driving device <b>42</b> may drive the first support frame <b>10</b> to rotate so as to adjust a shooting angle of the imaging device <b>200</b>. A rotating speed of the first driving device <b>42</b> may be adjusted timely to adapt to the attitude of the imaging device <b>200</b>. In some embodiments, the first driving device <b>42</b> may be a brushless motor. In some embodiments, the first driving device <b>42</b> may be a brush motor or another motor, not limited to any particular embodiment.

0100The third support frame <b>40</b><i>a </i>may comprise a third-frame pillar <b>43</b>, a second driving device <b>44</b>, and a connecting plate <b>45</b>. The third-frame pillar <b>43</b> may be a hollow cylinder. The second driving device <b>44</b> may be rotatably connected to the connecting pillar <b>41</b><i>a </i>to drive the second support frame <b>40</b> to rotate. In some embodiments, the second driving device <b>44</b> may be fixed to one end of the third-frame pillar <b>43</b>. A driving shaft (not shown) of the second driving device <b>44</b> may be fixedly connected with the connecting pillar <b>41</b><i>a </i>to drive the connecting pillar <b>41</b><i>a </i>to rotate, so as to drive the second support frame <b>40</b> to rotate. The other end of the third-frame pillar <b>43</b> may be connected to the connecting plate <b>45</b>. The connecting plate <b>45</b> may be substantially perpendicular to the third-frame pillar <b>43</b> and approximately parallel to a rotating shaft of the second driving device <b>44</b>.

0101In some embodiments, the driving portion <b>40</b><i>b </i>may be a brushless motor having a rotor connected to the connecting plate <b>45</b> and a stator fixed to the handle portion <b>60</b>. The driving portion <b>40</b><i>b </i>may be configured to drive the third support frame <b>40</b><i>a </i>to rotate 360° in the horizontal direction.

0102The handle portion <b>60</b> may be provided as a bent rod. In some embodiments, the handle portion <b>60</b> may comprise a connecting portion <b>601</b>, a supporting portion <b>602</b>, and handheld portions <b>603</b>. The supporting portion <b>602</b> may be a rod member, and the connecting portion <b>601</b> may be fixedly connected to the geometric center of the supporting portion <b>602</b>. The connecting portion <b>601</b> may be connected to the driving portion <b>40</b><i>b. </i>

0103The handheld portions <b>603</b> may be two cylindrical handles fixed to two ends of the supporting portion <b>602</b>.

0104The handle portion <b>60</b> may include a handle <b>604</b>. The handle <b>604</b> may be fixed to the supporting portion <b>602</b>, for example, at one side of the supporting portion <b>602</b> opposite to the connecting portion <b>601</b>, in order to facilitate an easy transport of the gimbal <b>100</b> when it is not in used. In some embodiments, the handle portion <b>60</b> may also be provided with a locking mechanism for a fixation on, for example, an aerial ladder to enable an automatic movement of the gimbal <b>100</b> by machinery equipment.

0105The three center of gravity adjusting units may be a first center of gravity adjusting unit <b>71</b>, a second center of gravity adjusting unit <b>72</b>, and a third center of gravity adjusting unit <b>73</b>, respectively.

0106Referring to <figref idref="DRAWINGS">FIGS. 3 to 5</figref>, the first center of gravity adjusting unit <b>71</b> may be provided on at least one of the first-frame pillars <b>11</b> to adjust a position of the guiding posts <b>12</b> relative to the first-frame pillar <b>11</b>. The second center of gravity adjusting unit <b>72</b> may be provided between the two clamping devices <b>13</b> to adjust a position of the adaptors <b>23</b> on the guiding posts <b>12</b>. The third center of gravity adjusting unit <b>73</b> may be provided within the connecting plate <b>45</b> to adjust a position of the third-frame pillar <b>43</b> on the connecting plate <b>45</b>.

0107In some embodiments, the first center of gravity adjusting unit <b>71</b> may comprise two snap rings <b>711</b>, two first bearings <b>712</b>, and a first threaded rod <b>713</b>. The two snap rings <b>711</b> may be sleeved at two ends of one of the first-frame pillars <b>11</b>, respectively, and one of the clamping devices <b>13</b> may be located between the two snap rings <b>711</b>. Each of the two snap rings <b>711</b> may be provided with a bearing hole <b>7110</b>. Each of the two bearing holes <b>7110</b> may be configured to receive one of the first bearings <b>712</b>. The first threaded rod <b>713</b> may be inserted through one of the first bearings <b>712</b> that is away from the connecting end <b>110</b> and the first threaded hole <b>136</b> of the collar <b>13</b><i>a</i>, with one end of the first threaded rod <b>713</b> being sleeved in the other one of the first bearings <b>712</b> that is adjacent to the connecting end <b>110</b>. To facilitate a rotation of the first threaded rod <b>713</b>, the first threaded rod <b>713</b> may be provided with a first rotating handle <b>7130</b> at one end of the first threaded rod <b>713</b> that is away from the connecting end <b>110</b>.

0108In some embodiments, the first threaded rod <b>713</b> may be directly sleeved in the two snap rings <b>711</b> without the first bearings <b>712</b>.

0109The second center of gravity adjusting unit <b>72</b> may comprise a second threaded rod <b>721</b> and a rotating member <b>722</b> provided on the second threaded rod <b>721</b> in a rotatably movable manner.

0110Two ends of the second threaded rod <b>721</b> may be fixed on the two clamping devices <b>13</b>, respectively. In some embodiments, each end of the second threaded rod <b>721</b> may be fixed at a middle position of the corresponding clamping devices <b>13</b>. In some embodiments, a rod fixing hole <b>130</b><i>a </i>(as shown in <figref idref="DRAWINGS">FIG. 9</figref>) may be provided at a middle position of each of the two collars <b>13</b><i>a</i>. Two ends of the second threaded rod <b>721</b> may be fixed in the two rod fixing holes <b>130</b><i>a</i>, respectively.

0111The rotating member <b>722</b> may be arranged between the two adaptors <b>23</b> and sleeved on the second threaded rod <b>721</b>. In some embodiments, the rotating member <b>722</b> may abut against inner sidewalls of the two adaptors <b>23</b>, and a threaded hole (not shown) may be provided at a central portion of the rotating member <b>722</b>. The threaded hole of the rotating member <b>722</b> may be threadedly connected with the second threaded rod <b>721</b>. Since the rotating member <b>722</b> abuts against the inner sidewalls of the two adaptors <b>23</b>, a rotation of the rotating member <b>722</b> on the second threaded rod <b>721</b> may be converted to a translational movement of the adaptors <b>23</b> on the second threaded rod <b>721</b>.

0112Referring to <figref idref="DRAWINGS">FIGS. 6 to 8</figref>, the third center of gravity adjusting unit <b>73</b> may comprise two second bearings <b>731</b>, a third threaded rod <b>732</b>, and a moving member <b>733</b> provided on the third threaded rod <b>732</b> in a rotatably movable manner.

0113In some embodiments, the connecting plate <b>45</b> of the third support frame <b>40</b> may comprise a bottom surface <b>451</b> in contact with the third-frame pillar <b>43</b>. The bottom surface <b>451</b> may be provided with a receiving groove <b>4510</b> which may comprise a outer sidewall <b>4511</b>. One of the second bearings <b>731</b> may be fixed in the receiving groove <b>4510</b>, and the other one of the second bearings <b>731</b> may be fixed to the outer sidewall <b>4511</b>. Axes of the two second bearings <b>731</b> may be approximately parallel to each other, and may be approximately perpendicular to the longitudinal direction of the third-frame pillar <b>43</b>. The third threaded rod <b>732</b> may be inserted through one of the second bearings <b>731</b> that is fixed to the outer sidewall <b>4511</b>, with one end of the third threaded rod <b>732</b> being sleeved in the other one of the second bearings <b>731</b> that is fixed in the receiving groove <b>4510</b>. To facilitate a rotation of the third threaded rod <b>732</b>, the third threaded rod <b>732</b> may be provided with a second rotating handle <b>7320</b> at one end of the third threaded rod <b>732</b> that is adjacent to the outer sidewall <b>4511</b>.

0114The moving member <b>733</b> may comprise a first moving portion <b>7331</b> and a second moving portion <b>7332</b> connected with the first moving portion <b>7331</b>. The first moving portion <b>7331</b> may be fixedly connected with the third-frame pillar <b>43</b>. In some embodiments, the first moving portion <b>7331</b> may be fixedly connected with the third-frame pillar <b>43</b> by bolt(s). In some embodiments, the first moving portion <b>7331</b> may be fixedly connected with the third-frame pillar <b>43</b> by welding. The second moving portion <b>7332</b> may be provided with a second threaded hole <b>7333</b>. The third threaded rod <b>732</b> may be inserted in the second threaded hole <b>7333</b> and may be threadedly connected with the second threaded hole <b>7333</b>.

0115In some embodiments, the third threaded rod <b>732</b> may be directly sleeved on two sidewalls of the receiving groove <b>4510</b> without the second bearings <b>731</b>.

0116Referring to <figref idref="DRAWINGS">FIG. 9</figref>, the imaging device <b>200</b> may be fixedly arranged on the support assembly <b>20</b> when in use. In order to improve the stability of the imaging device <b>200</b> during image shooting, the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole may need to coincide with the rotating shaft of the first driving device <b>42</b>. According to mechanical analysis, if the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole coincides with the driving shaft of the first driving device <b>42</b>, the first support frame <b>10</b> may not generate a rotational torque regardless of a rotation angle of the first support frame <b>10</b>, i.e., the first support frame <b>10</b> may not shake back and forth due to a torque. Therefore, a stability of the imaging device <b>200</b> may be improved during a rotation of the first support frame <b>10</b>. Further, if the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole coincides with the driving shaft of the second driving device <b>44</b>, the second support frame <b>40</b> may not generate a rotational torque regardless of a rotation angle of the second support frame <b>40</b>, i.e., the second support frame <b>40</b> may not shake back and forth due to a torque. Therefore, the stability of the imaging device <b>200</b> may be improved during a rotation of the second support frame <b>40</b>. Further, if the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole coincides with the driving shaft of the driving portion <b>40</b><i>b</i>, the third support frame <b>40</b><i>a </i>may not generate a rotational torque regardless of a rotation angle of the third support frame <b>40</b><i>a</i>, i.e., the third support frame <b>40</b><i>a </i>may not shake back and forth due to a torque. Therefore, the stability of the imaging device <b>200</b> may likewise be improved during a rotation of the third support frame <b>40</b>A.

0117In case the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole deviates from the rotating shaft of the first driving device <b>42</b>, the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole may be adjusted by the first center of gravity adjusting assembly <b>71</b>, such that the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole coincides with the rotating shaft of the first driving device <b>42</b>. In some embodiments, the clamp locking member <b>134</b> may be turned and released to enlarge a diameter of the pillar clamping hole <b>130</b> of the collar <b>13</b><i>a</i>, thereby bringing the collar <b>13</b><i>a </i>and the first-frame pillar <b>11</b> into a loose fit. By rotating the first rotating handle <b>7130</b>, the first threaded rod <b>713</b> may be rotated within the first bearings <b>712</b> and the first threaded hole <b>136</b>, and the collar <b>13</b><i>a </i>may be moved along a longitudinal direction of the first threaded rod <b>713</b> to adjust the center of gravity of the first support frame <b>10</b>, thereby causing the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole to coincide with the rotating shaft of the first driving device <b>42</b>.

0118It will be appreciated that the first rotating handle <b>7130</b> may be replaced with a driving motor which may drive the first threaded rod <b>713</b> to rotate.

0119It will be appreciated that, the structure of the first center of gravity adjusting assembly <b>71</b> may not be limited to the illustrated embodiment, so long as a position of the guiding posts <b>12</b> on the first-frame pillars <b>11</b> can be adjusted to cause the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, and the imaging device <b>200</b> as a whole to coincide with the rotating shaft of the first driving device <b>42</b>.

0120In case the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole deviates from the rotating shaft of the second driving device <b>44</b>, the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole may be adjusted by the second center of gravity adjusting assembly <b>72</b>, such that the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole coincides with the rotating shaft of the second driving device <b>44</b>. In some embodiments, the screws <b>233</b> may be released to enlarge diameters of the circular slots <b>230</b>, thereby bringing the adaptors <b>23</b> and the guiding posts <b>12</b> into a loose fit. The adaptors <b>23</b> may be moved on the guiding posts <b>12</b> along a longitudinal direction of the guiding posts <b>12</b> when the rotating member <b>722</b> is rotated, thereby causing the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole to coincide with the rotating shaft of the second driving device <b>44</b>.

0121It will be appreciated that, the structure of the second center of gravity adjusting assembly <b>72</b> may not be limited to the illustrated embodiment, so long as the positions of the adaptors <b>23</b> on the guiding posts <b>12</b> can be adjusted to cause the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, and the imaging device <b>200</b> as a whole to coincide with the rotating shaft of the second driving device <b>44</b>.

0122In case the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole deviates from the center of rotation of the driving portion <b>40</b><i>b</i>, the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole may be adjusted by the third center of gravity adjusting assembly <b>73</b> to cause the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole to coincide with the center of rotation of the driving portion <b>40</b><i>b</i>. In some embodiments, by rotating the second rotating handle <b>7320</b>, the third threaded rod <b>732</b> may be rotated within the second bearings <b>731</b> and the second threaded hole <b>7333</b> of the moving member <b>733</b>, and the moving member <b>733</b> may be moved along a longitudinal direction of the third threaded rod <b>732</b>, thereby causing the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole to coincide with the center of rotation of the driving portion <b>40</b><i>b. </i>

0123It will be appreciated that the second rotating handle <b>7320</b> may be replaced with a driving motor that may drive the third threaded rod <b>732</b> to rotate.

0124It will be appreciated that, the structure of the third center of gravity adjusting assembly <b>73</b> may not be limited to the illustrated embodiment, so long as the position of the third-frame pillar <b>43</b> on the connecting plate <b>45</b> can be adjusted to cause the center of gravity of the first support frame <b>10</b>, the support assembly <b>20</b>, the second support frame <b>40</b>, the third support frame <b>40</b><i>a</i>, and the imaging device <b>200</b> as a whole to coincide with the center of rotation of the driving portion <b>40</b><i>b. </i>

0125It will be appreciated that not all of the three center of gravity adjusting assemblies are needed. In some embodiments, only the first center of gravity adjusting assembly <b>71</b> may be provided. In some embodiments, the second center of gravity adjusting assembly <b>72</b> or the third center of gravity adjusting assembly <b>73</b> may be provided. In some embodiments, the first center of gravity adjusting assembly <b>71</b> and the second center of gravity adjusting assembly <b>72</b> may be provided. In some embodiments, the first center of gravity adjusting assembly <b>71</b> and the third center of gravity adjusting assembly <b>73</b> may be provided. In some embodiments, the second center of gravity adjusting assembly <b>72</b> and the third center of gravity adjusting assembly <b>73</b> may be provided.

0126The gimbal of the present disclosure may further comprise at least one center of gravity adjusting unit. The center of gravity adjusting unit may be at least provided on one of the first-frame pillars, between the two clamping devices or in the connecting plate to at least adjust the positions of the guiding posts on the first-frame pillars, the positions of the adaptors on the guiding posts, or the position of the third-frame pillar on the connecting plate. The gimbal may be configured to adjust the center of gravity of the gimbal by the at least one center of gravity adjusting unit.

0127The foregoing disclosure is merely illustrative of the embodiments of the disclosure but not intended to limit the scope of the disclosure. Any equivalent structural or equivalent flow changes, which are made without departing from the specification and the drawings of the disclosure, and a direct or indirect application in other relevant technical field, shall fall into the scope of the disclosure.